1964
DOI: 10.1016/0016-7037(64)90149-8
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The determination of rubidium and caesium in stony meteorites by neutron activation analysis and by mass spectrometry

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Cited by 66 publications
(10 citation statements)
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“…Feldspar has a normative abundance of 10.8% in Modoc (Mason and Wiik, 1967), and accounts for about 43 ng/g Cs in the whole rock. The mean and median Cs contents in Modoc are 76 ± 14 ng/g and 80 ng/g, respectively, calculated from the data of Gast (1960), Keays et al (1971), and Smales et al (1958Smales et al ( , 1964. Thus, feldspar contains about 55% of all Cs in Modoc.…”
Section: Trace Element Abundances Across Petrologic Typementioning
confidence: 85%
“…Feldspar has a normative abundance of 10.8% in Modoc (Mason and Wiik, 1967), and accounts for about 43 ng/g Cs in the whole rock. The mean and median Cs contents in Modoc are 76 ± 14 ng/g and 80 ng/g, respectively, calculated from the data of Gast (1960), Keays et al (1971), and Smales et al (1958Smales et al ( , 1964. Thus, feldspar contains about 55% of all Cs in Modoc.…”
Section: Trace Element Abundances Across Petrologic Typementioning
confidence: 85%
“…The lowest dispersions of ± 3% are probably accounted for by the uncertainty of ± 2 to 3% of the individual abundance determinations; however, dispersions in Table 5 beyond 5% might be real. Smales et al (1964) have determined via activation analysis the alkali elements Rb and Cs in the 32 ordinary chondrites. Their data for Rb yield an average of 2.4 ± 0.6 ppm (± 25% mean deviation) and for Cs, 0.06 ± 0.05 ppm, while the average K value for ordinary chondrites as given in the review by Goles (l971a) is 840 ppm.…”
Section: Otondritesmentioning
confidence: 99%
“…11) are below those of most alkali basalts as compiled by Floyd & Winchester (1975) and Bass et al (1973). During fractionation, however, there is rapid enrichment in Ti, Sr, Zr, and P. This carries the furthest evolved Jamtland rocks well into the field of alkali-basaltic contents of minor eleDownloaded by [La Trobe University] at 08:04 14 June 2016 GFF I01 (1979) oceanic alkali basalts, the potassium content of the Jamtland CSDG dolerites is moderately low ( Lessing et al 1963) and are close to or slightly below those deduced for a chondritic mantle (Smales et al 1964). There is some control by the biotite/feldspar ratios and thus the individual samples may in this case reflect local crystallization processes rather than the chemical evolution of the whole intrusion.…”
Section: Resiiltsmentioning
confidence: 88%